The scientific literature is very clear: regular physical activity may be the best medicine available.  In particular, there are several forms of cancer that regular exercise can prevent.  Breast cancer is one of the cancers that is prevented with exercise and we are pleased to have Dr. Weston Porter join us to chat about breast cancer and some of the new discoveries in the cancer field.  If you've wondered what work is actually being done to try to prevent and 'cure' cancer, you sho...